########################################################################

#                                                                      #

#               This software is part of the ast package               #

#          Copyright (c) 1982-2012 AT&T Intellectual Property          #

#                      and is licensed under the                       #

#                 Eclipse Public License, Version 1.0                  #

#                    by AT&T Intellectual Property                     #

#                                                                      #

#                A copy of the License is available at                 #

#          http://www.eclipse.org/org/documents/epl-v10.html           #

#         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #

#                                                                      #

#              Information and Software Systems Research               #

#                            AT&T Research                             #

#                           Florham Park NJ                            #

#                                                                      #

#                  David Korn <dgk@research.att.com>                   #

#                                                                      #

########################################################################

function err_exit

{

	print -u2 -n "\t"

	print -u2 -r ${Command}[$1]: "${@:2}"

	let Errors+=1

}

alias err_exit='err_exit $LINENO'

integer Errors=0

Command=${0##*/}

compiled=''

read -n4 c < $0 2> /dev/null

[[ $c == *$'\ck'* ]] && compiled=1

ulimit -c 0

tmp=$(mktemp -dt) || { err_exit mktemp -dt failed; exit 1; }

trap "cd /; rm -rf $tmp" EXIT

integer foo=33

bar=bye

# check for global variables and $0

function foobar

{

	case $1 in

	1) 	print -r - "$foo" "$bar";;

	2)	print -r - "$0";;

	3)	typeset foo=foo

		integer bar=10

	 	print -r - "$foo" "$bar";;

	4)	trap 'foo=36' EXIT

		typeset foo=20;;

	esac

}

function print

{

	command print hi

}

if	[[ $(print) != hi ]]

then	err_exit "command print not working inside print function"

fi

unset -f print

if	[[ $(foobar 1) != '33 bye' ]]

then	err_exit 'global variables not correct'

fi

if	[[ $(foobar 2) != 'foobar' ]]

then	err_exit '$0  not correct'

fi

if	[[ $(bar=foo foobar 1) != '33 foo' ]]

then	err_exit 'environment override not correct'

fi

if	[[ $bar == foo ]]

then	err_exit 'scoping error'

fi

if	[[ $(foobar 3) != 'foo 10' ]]

then	err_exit non-local variables

fi

foobar 4

if	[[ $foo != 36 ]]

then	err_exit EXIT trap in wrong scope

fi

unset -f foobar || err_exit "cannot unset function foobar"

typeset -f foobar>/dev/null  && err_exit "typeset -f has incorrect exit status"

function foobar

{

	(return 0)

}

> $tmp/test1

{

foobar

if	[ -r $tmp/test1 ]

then	rm -r $tmp/test1

else	err_exit 'return within subshell inside function error'

fi

}

abc() print hi

if	[[ $(abc) != hi ]]

then	err_exit 'abc() print hi not working'

fi

( unset -f abc )

if	[[ $(abc 2>/dev/null) != hi ]]

then	err_exit 'abc() print hi not working after subshell unset'

fi

(

	function f

	{

		exit 1

	}

	f

	err_exit 'exit from function not working'

)

unset -f foo

function foo

{

	x=2

	(

		x=3

		cd $tmp

		print bar

	)

	if	[[ $x != 2 ]]

	then	err_exit 'value of x not restored after subshell inside function'

	fi

}

x=1

dir=$PWD

if	[[ $(foo) != bar ]]

then	err_exit 'cd inside nested subshell not working'

fi

if	[[ $PWD != "$dir" ]]

then	err_exit 'cd inside nested subshell changes $PWD'

fi

fun() /bin/echo hello

if	[[ $(fun) != hello ]]

then	err_exit one line functions not working

fi

cat > $tmp/script <<-\!

	print -r -- "$1"

!

chmod +x $tmp/script

function passargs

{

	$tmp/script "$@"

}

if	[[ $(passargs one) != one ]]

then	err_exit 'passing args from functions to scripts not working'

fi

cat > $tmp/script <<-\!

	trap 'exit 0' EXIT

	function foo

	{

		/tmp > /dev/null 2>&1

	}

	foo

!

if	! $tmp/script

then	err_exit 'exit trap incorrectly triggered'

fi

if	! $SHELL -c $tmp/script

then	err_exit 'exit trap incorrectly triggered when invoked with -c'

fi

$SHELL -c "trap 'rm $tmp/script' EXIT"

if	[[ -f $tmp/script ]]

then	err_exit 'exit trap not triggered when invoked with -c'

fi

cat > $tmp/script <<- \EOF

	foobar()

	{

		return

	}

	shift

	foobar

	print -r -- "$1"

EOF

chmod +x $tmp/script

if	[[ $( $SHELL $tmp/script arg1 arg2) != arg2 ]]

then	err_exit 'arguments not restored by posix functions'

fi

function foo

{

	print hello

}

(

	function foo

	{

		print bar

	}

	if [[ $(foo) != bar ]]

	then	err_exit 'function definitions inside subshells not working'

	fi

)

if [[ $(foo) != hello ]]

then	err_exit 'function definitions inside subshells not restored'

fi

unset -f foo bar

function bar

{

        print "$y"

}

function foo

{

        typeset x=3

        y=$x bar

}

x=1

if	[[ $(foo) != 3 ]]

then	err_exit 'variable assignment list not using parent scope'

fi

unset -f foobar

cat > $tmp/foobar <

function foobar

{

	print foo

}

!

chmod +x $tmp/foobar

FPATH=$tmp

autoload foobar

if	[[ $(foobar 2>/dev/null) != foo ]]

then	err_exit 'autoload not working'

fi

unset -f foobar

function foobar

{

	typeset -r x=3

	return 0

}

( foobar ) 2> /dev/null || err_exit "cannot unset readonly variable in function"

if	$SHELL -n 2> /dev/null <<-!

	abc()

	!

then	err_exit 'abc() without a function body is not a syntax error'

fi

function winpath

{

	usage='q pathname ...'

	typeset var format=s

	while   getopts  "$usage" var

	do      case $var in

		q)      format=q;;

	        esac

	done

	print done

}

if	[[ $( (winpath --man 2>/dev/null); print ok) != ok ]]

then	err_exit 'getopts --man in functions not working'

fi

if	[[ $( (winpath -z 2>/dev/null); print ok) != ok ]]

then	err_exit 'getopts with bad option in functions not working'

fi

unset -f x

function x

{

        print "$@"

}

typeset -ft x

if      [[ $(x x=y 2>/dev/null) != x=y ]]

then    err_exit 'name=value pair args not passed to traced functions'

fi

function bad

{

	false

}

trap 'val=false' ERR

val=true

bad

if	[[ $val != false ]]

then	err_exit 'set -e not working for functions'

fi

function bad

{

	false

	return 0

}

val=true

bad

if	[[ $val != true ]]

then	err_exit 'set -e not disabled for functions'

fi

bad()

{

	false

	return 0

}

val=true

bad

if	[[ $val != false ]]

then	err_exit 'set -e not inherited for posix functions'

fi

trap - ERR

function myexport

{

	nameref var=$1

	if	(( $# > 1 ))

	then	export	$1=$2

	fi

	if	(( $# > 2 ))

	then	print $(myexport "$1" "$3" )

		return

	fi

	typeset val

	val=$(export | grep "^$1=")

	print ${val#"$1="}

}

export dgk=base

val=$(myexport dgk fun)

if	[[ $val != fun ]]

then	err_exit "export inside function not working -- expected 'fun', got '$val'"

fi

val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//')

if	[[ $val != base ]]

then	err_exit "export not restored after function call -- expected 'base', got '$val'"

fi

val=$(myexport dgk fun fun2)

if	[[ $val != fun2 ]]

then	err_exit "export inside function not working with recursive function -- expected 'fun2', got '$val'"

fi

val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//')

if	[[ $val != base ]]

then	err_exit "export not restored after recursive function call -- expected 'base', got '$val'"

fi

val=$(dgk=try3 myexport dgk)

if	[[ $val != try3 ]]

then	err_exit "name=value not added to export list with function call -- expected 'try3', got '$val'"

fi

val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//')

if	[[ $val != base ]]

then	err_exit "export not restored name=value function call -- expected 'base', got '$val'"

fi

unset zzz

val=$(myexport zzz fun)

if	[[ $val != fun ]]

then	err_exit "export inside function not working -- expected 'fun', got '$val'"

fi

val=$(export | sed -e '/^zzz=/!d' -e 's/^zzz=//')

if	[[ $val ]]

then	err_exit "unset varaible exported after function call -- expected '', got '$val'"

fi

unset zzz

typeset -u zzz

function foo

{

	zzz=abc

	print $zzz

}

if	[[ $(foo)$(foo) != ABCABC ]]

then	err_exit 'attributes on unset variables not saved/restored'

fi

function xpd {

	typeset i j=$1

                for i

                        do print i=$i j=$j

                        [[ $i == a ]] && xpd b

                        done

                }

if	[[ $(xpd a c) != $'i=a j=a\ni=b j=b\ni=c j=a' ]]

then	err_exit 'for loop function optimization error'

fi

typeset -A visited

integer level=0

function closure

{

	(( $# > 5 )) && return 1

	((level < 2)) && ((level++))

	typeset tmp r=0

	visited[$1]=1

	for tmp in $level _$level

	do

		[[ ${visited[$tmp]} == 1 ]] && continue

		closure $tmp $* || r=1

	done

	return $r

}

closure 0 || err_exit -u2 'for loop function optimization bug2'

dir=$tmp/dir

mkdir $dir

cd $dir || { err_exit "cd $dir failed"; exit 1; }

(

	function a {

		print a

	}

	function b {

		print 1

		a

		print 2

	} > /dev/null

	typeset -ft a b

	PS4=X

	b 

) > file 2>&1

[[ $(

rm -f file

print 'false' > try

chmod +x try

cat > tst <<- EOF

	function ignore

	{

		./try

		return 0

	}

	trap "print error; exit 1" ERR

	ignore

EOF

if	[[ $($SHELL < tst)  == error ]]

then	err_exit 'ERR trap not cleared'

fi

FPATH=$dir

print ': This does nothing' > foobar

chmod +x foobar

unset -f foobar

{ foobar; } 2>/dev/null

got=$?

exp=126

if	[[ $got != $exp ]]

then	err_exit "function file without function definition processes wrong error -- expected '$exp', got '$got'"

fi

print 'set a b c' > dotscript

[[ $(PATH=$PATH: $SHELL -c '. dotscript;print $#') == 3 ]] || err_exit 'positional parameters not preserved with . script without arguments'

cd ~- || err_exit "cd back failed"

function errcheck

{

	trap 'print ERR; return 1' ERR

	false

	print ok

}

err=$(errcheck)

[[ $err == ERR ]] || err_exit 'trap on ERR not working in a function'

x="$(

	function foobar

	{

		print ok

	}

	typeset -f foobar

)"

eval "$x"  || err_exit 'typeset -f generates syntax error'

[[ $(foobar) != ok ]] && err_exit 'typeset -f not generating function'

unset -f a b c

a()

{

        b

        b

        print ${.sh.fun}

}

b() { : ;}

[[ $(a) == a ]] || err_exit '.sh.fun not set correctly in a function'

print $'a(){\ndate\n}'  | $SHELL 2> /dev/null || err_exit 'parser error in a(){;date;}'

cat > $tmp/data1 << '++EOF'

     1  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

     2  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

     3  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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++EOF

cat > $tmp/script << '++EOF'

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f()

{

cat <<\M

++EOF

cat $tmp/data1 >> $tmp/script

printf 'M\n}\n\nf\n\n' >> $tmp/script

$SHELL -c $tmp/script  > $tmp/data2

cmp -s $tmp/data[12] || err_exit 'error with long functions'

v=1

function f

{

	typeset i

	for i in 0 1

	do	typeset v

		v=$i

		[[ $v == $i ]] || return 1

	done

}

f || err_exit "typeset optimization bug"

function f

{

	print -r -- "$foo$bar"

}

function g

{

	print -r -- $(bar=bam f)

}

unset foo bar

[[ $(foo=hello g) == hellobam ]] || err_exit 'function exports not passed on'

[[ $(bar=hello g) == bam ]] || err_exit 'function exports not overridden'

unset -f foo

function foo

{

	typeset line=$1

	set +n

	while	[[ $line ]]

	do	if	[[ ! $varname ]]

		then	varname=${line%% *}

			line=${line##"$varname"?( )}

			[[ $line ]] && continue

		else	print ok

			return

		fi

		varname=

	done

}

[[ $(foo 'NUMBERED RECORDSIZE') == ok ]] || err_exit 'optimization error with undefined variable'

unset x

x=$(

	set -e

	integer count=0

	function err_f

	{

		if	((count++==3))

		then	print failed

		else	false

		fi

	}

	trap 'err_f' ERR

	false

)

[[ $x == failed ]] && err_exit 'ERR trap executed multiple times'

export environment

typeset global

function f

{

	typeset i t local

	for i

	do	case $i in

		[-+]*)	set "$@"

			continue

			;;

		local)	local=f

			t=$(typeset +f $local)

			;;

		global)	global=f

			t=$(typeset +f $global)

			;;

		environment)

			environment=f

			t=$(typeset +f $environment)

			;;

		literal)t=$(typeset +f f)

			;;

		positional)

			set -- f

			t=$(typeset +f $1)

			;;

		esac

		[[ $t ]] || err_exit "typeset +f \$$i failed"

	done

}

f local global environment literal positional

$SHELL -c '

	print exit 0 > '$tmp'/script

	chmod +x '$tmp'/script

	unset var

	var=( ident=1 )

	function fun

	{

		PATH='$tmp' script

	}

	fun

' || err_exit "compound variable cleanup before script exec failed"

( $SHELL << \++EOF++

function main

{

 	typeset key

 	typeset -A entry

 	entry[a]=( value=aaa )

}

main

++EOF++

) 2> /dev/null || err_exit 'function main fails'

optind=$OPTIND

sub()

{

        (

                OPTIND=1

                while getopts :abc OPTION "$@"

                do      print OPTIND=$OPTIND

                done

        )

}

[[ $(sub -a) == OPTIND=2 ]] || err_exit 'OPTIND should be 2'

[[ $(sub -a) == OPTIND=2 ]] || err_exit 'OPTIND should be 2 again'

[[ $OPTIND == "$optind" ]] || err_exit 'OPTIND should be 1'

function bar

{

	[[ -o nounset ]] && err_exit  'nounset option should not be inherited'

}

function foo

{

	set -o nounset

	bar